health and disease

Question 1

ways that diseases might spread

Answer 1

by water, air, or direct contact, in contaminated food, by an animal, via body fluids

Question 2

how the virus differs from living organism

Answer 2

they cant survive and reproduce outside the cells of the host

Question 3

describe the process of blood clotting

Answer 3

platelets releases enzymes that turn fibrinogen to fibrin. then fibrin forms a mesh of fibres that traps red blood cell

Question 4

chemical defence against disease

Answer 4

HCl acid in the stomach

Question 5

physical defence against disease

Answer 5

cilia and mucus

Question 6

the process of phagocytes destroying the pathogen

Answer 6

it engulfs the pathogen then use digestive enzymes to destroy it.

Question 7

what are antibodies

Answer 7

white blood cell produced from lymphocytes

Question 8

what shape are the antibodies

Answer 8

y shaped

Question 9

what is active immunity and an example

Answer 9

a long term immunity, because there are now memory cells that can produce antibodies. vaccination, or natural.

Question 10

what is passive immunity and an example

Answer 10

short term immunity because no memory cells are produced. breast milk.